包围

During a siege , to invest a town or fortress means to surround it with a contravallation and a circumvallation .

用对垒和壕沟包围城镇或堡垒，见攻城战。

They gave a pledge that there would be no circumvention via third coutries.

他们保证不会有通过第三国进行包围的事。

Has clos'd his golden eye, and wrapt in shades

闭上那金色的双眼，被黑暗包围

Whenever the world begins to close in on me.

无论何时这世界开始包围我。。。

All this places us in a position to close in on Nanchang.

这样就造成了向南昌包围的形势。

A closed curve is a path that repeats itself, and thus encloses one or more regions. Simple examples include circles, ellipses, and polygons .

封闭曲线的路径是循环的，包围一个或更多区域，简单的例子如圆、椭圆、多边形。

A closed curve is a path that repeats itself, and thus enclose s one or more regions. Simple examples include circles, ellipses, and polygons.

封闭曲线的路径是循环的，包围一个或更多区域，简单的例子如圆、椭圆、多边形。

Then gives out an optimised convergent algorithm and describes the system robustness by a closed curve on frequency domain, in which all possibte frequency responses.

提出一种计算过程可以迭代循环的最优收敛算法，并在频域复平面上给出描述系统鲁棒性的包络曲线，所有可能的、随系统不确定性而变化的频率响应都落在该曲线所包围的闭域内。

Juhua Island, the largest island in Liaodong Bay, is being closed in by the worst sea ice in 30 years off the Huludao coast in Liaoning, Xinhua reported Tuesday.

据新华社19日报道，辽宁省葫芦岛市近岸海域遇到了30年来最严重的海冰灾害，辽东湾最大岛屿菊花岛已全部被海冰包围。

The valley ran from the horseshoe, land- locked bay to the tops of the dizzy, cloud-capped peaks and contained perhaps ten thousand acres. It was filled with tropical fruits, wild chickens, and wild pigs, with an occasional herd of wild cattle, while high up among the peaks were herds of wild goats harried by packs of wild dogs.

那道峡谷从被陆地包围的马蹄铁形海湾开始直到白云缘绕的令人晕眩的峰顶，约有一万英亩，满是热带水果、野鸡、野猪，偶然还会出现野牛群。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。